Brace for construction forms



9 1950 L. L. ANTHONY 2,518,112

BRACE FOR CONSTRUCTION FORMS Filed Sept. 25, 1946 2 Sheets-Sheet 1 0 G o d o o o o o ,x/ l 5M 78%" Inventor noreys Aug- 8, 1950 L. L. ANTHONY 2,518,112

BRACE FOR CONSTRUCTION- FORMS Filed Sept. 25, 1946 v 2 sheeis-sneep 2 Inventor Zuciua [ea/197M502? Weave; 3mm

Patented Aug. 8, 1950 -UNITED BRACE FUR cons'rnuc'rron FORMS Lucius Levi Anthony, South llaven lllichrv Application September 25, 1946','SerialN o. 699,303 I This invention-pertains to a form holder and more particularly relates to a clamp and brace for reinforcing construction forms and the like.

An object of v the invention consists in the provision of a means for reinforcing the construction form, which is easily attached to and removed fromtheend portions of the form.

Another object is to provide a reinforcing means for a construction form which may be readily passed through and secured to'a concrete form. 4

. These together with numerous other objects of. the invention, which will'later become apparent as the following description proceeds, are attained by my device, which has been illustrated b way of example only in the accompanying drawings;

Figure 1 is an elevation of a clamp forming an element of the invention;

Figure 2 is an end elevation at the left of Figure 1; I

Figure 3 is an end elevation at the right of Figure 1;

Figure 4 is an elevation of a modified clamp forming an element of the invention;

Figure 5 is an elevation of a reinforcing bolt forming an element of the device;

Figure 6 is a front elevation, and

Figure '7 is a side elevation of a washer forming a part of the invention;

Figure 8 is a front elevation showing the elements of my invention applied to a construction form;

Figure 9 is an end view of Figure 8;

Figure 10 is an elevation of a portion of an element employed in Figure 8;

Figure 11 is an elevation of a tool designed for use with the element shown in Figure 10, and

Figure 12 is a vertical sectional view taken substantially upon the line I 2--I 2 of Figure 10.

In the attached drawings, I 0 denotes generally a construction form, of conventional design such as customarily is employed in concrete work, to which my invention is adapted. As indicated generally at I2, I provide an adjustable clamp to reinforce the edges of the form, while a plurality of adjustable reinforcing means, one of which is shown at I4, extends through the opposed walls of the form.

As shown best in Figures 1-4, the clamp I2 is composed of a pair of spaced, parallel arms I6, I8, of any desired material such as wood or steel, and have depending extremities 20 and 22 for engaging or embracing the edges of a form I0. Adjustably connecting arms I6, I8, are a pair of 2 Claims. (Cl. 144-291) parallel, transverse, spacing bars 24 and 26. By

of apertures 32 selectively engageable upon a pin 34 which is adapted to abut the arm I6 as the bar 24 rests in a yoke or notch 36 therein. The bar 26, fulcrumed at 38 in an aperture or slot 40 at one end of armIB, has at its other extremity a series of spaced inclined notches 42, ad-' justably engageable with a pin 44 in aperture 46' at an end of arm I8.

The operation of this element of my invention will now beapparent, when taken with Figures 8 and 9. The pin 34, disposed in a selected aperture 32 is; caused to straddle the yoke or notch 36'which receives bar 24. Then the ex tremities 20, 22 are placed in position to em: brace the form I0 and'the bar '26 pivoted at 38 is drawn'throug'h' the aperture 46 until an appropriate notch 42 engages the pin 44,"thereby locking the clamp in the desired tightness upon the form. The pivotal connection and slotted passages give sufficient flexibility to permit easy adjustment of the clamp or its complete disassembly for storage or transportation.

The above set forth construction represents a very simple and inexpensive type of clamp. Alternatively, I may employ a slightly more refined construction, shown in Figure 4. Here, arms H6 and H8 and cross bar I26 are identical with members I6, I8 and 26 of Figure 1, both as to construction and function. However, in place of bar 24, I employ an adjusting means indicated generally at I24. As shown in Figure 5, this member consists of a rod I28, headed as at I30 and threaded at I32 to adjustably receive a telescopic threaded sleeve I34 having a neck I36 to which is fulcrumed a cam I38 at I40, said cam having an operating handle I42. The member I24 is intended to be received through bifurcations or apertures in the ends of arms I I6, II8, these being similar to the notches 30 or slots 46 of Figure 3. To retain the bar I24 in position, a pair of fastening plates I44, shown in Figures 6 and 7, are employed. Each consists of a plate of metal preferably circular, having a radial slot I48 adapted to receive and straddle the rod I28 or neck I36, while one side of the disk I44 has a depending lug I50 struck therefrom. The disk is adapted to be placed against the outer surface of arms I I6 and I I8 with the lug I50 anchoring the disk to the arms, while the slots I48 encircle the appropriate parts of members I28 and I36. The head I30 and cam I38 seats upon the walls surrounding slots I48, whereby the disks serve as pressure plates. In this form, the slotted extremities I20, I22 serve to embrace the form I and cam I38 constitutes the clamp looking means. This arrangement has the advantage of quicker and easier clamping and releasing action as well as more durable wearing surfaces.

By means of either of the elements described hereinbefore, the edges of the form l0 may be clamped against spreading. However, the element shown in Figures 10-12 is desired to reinforce the form at desirable points throughout its extent. This member consists of a bar 50 having at one end a flange 52 conveniently secured thereto as by a nut or shoulder 54, while the other end engages a tubular sleeve SBinternally threaded at 58 and provided with a collar or washer 60 adjustably secured as by a nut or shoulder 62. Spacing sleeves 64 are interposed between the flange 52,- 62 and the corresponding, adjacent outer walls of form 10 through which member 50, is passed. As shown at 66, member 55 has a tapered extremity which is of square. cross section and is engageable. by the socket. of a two handled Wrench H1 for purposes of adlusting the compression force applied to the form by the bar.

, As will be readily understood, this latter element will be inserted at all locations in av form requiring reinforcement, one such installation being indicated in Figure 8.

When used in conjunction with the clamp in Figure 1 or Figure 4, the reinforcing bar produces an adequate brace means for forms or the like.

It is to be understood that the drawings are illustrative only and: that I may avail myself of any modifications fallingwithin the scope of the appended claims. a

"I claim as my invention:

1. A brace for construction forms comprising a pair otparallelspaced arms having extremities adapted to embrace the walls or a construction form, a pair of parallel bars consisting of a spacing bar and a fastening bar. said spacing bar having one end loosely secured in an aperture in 5 one of said pairs of arms and having its other extremity adjustably secured in an aperture in the other of said pair of arms, said fastening bar having one extremity pivoted to the other extremity of said one of said pair of arms and having its other extremity-adlustably secured in an aperture in the other extremity of said other of said pair of arms, said spacing bar comprising a telescopic threaded sleeve adjustably receivinga threaded rod therein, a cam and lever pivoted to one end of said sleeve, and retaining plates between an enlarged and of said threaded rodand said. one arm, and between said cam and the other of said arms.

2. The combination of claim 1 wherein said retaining plates includeradial slots therein and depending lugs struck therefrom.

LUCIUSJ LEVI REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date v 1,160,212 Symona V Nov. 16, 1915 1,209,761 Roos et al Dec. 26, 1916 1,566,377 Currente Dec. 22, 1925 1,586,991 Hawley u--- June 1, 1920. 1,627,085 Giggal u; May 3, 1927 1,660,905 Allman Feb. 28', 1928 1,935,218 Umbachdv; Nov. 14, 1933 2,157,345 Nelson May 9,. 1939 2,190,748 Williams "Feb. 20, 1940 FOREIGN PATENT s Number Country Date Great Britain 1 Mar. 18, 1911 

